def func(self, max_tracks, tracks, ret_tracks):
	results = []

	if len(tracks) > 0:
		sorted_files = [track.filename for track in sorted(list(tracks), key = lambda t: t.played[-1]) if len(track.played) > 0]

		results = self.load_tracks(sorted_files, max_tracks)

	ret_tracks |= set(results)

	self.stats_played_days(results, asc = False)
